<script lang="ts" setup name="HomeBrand">
import HomePanel from './home-panel.vue'
import useStore from '@/store';
import { uselazyLoadData } from '@/utils/hooks'
import { ref } from 'vue';
import HomeSkeleton from './home-skeleton.vue'
const { home } = useStore()
const target = uselazyLoadData(home.getBrandList)
const index = ref(0)
const prev = () => {
  // console.log('prev');
  if (index.value === 0) return
  index.value--
}
const next = () => {
  // console.log('next');
  if (index.value === Math.ceil(home.brandList.length / 5 - 1)) return
  index.value++
}
</script>

<template>
  <HomePanel ref="target" title="热门品牌" sub-title="国际经典 品质保证">
    <template v-slot:right>
      <a href="javascript:;" :class="{ disabled: index === 0 }" class="iconfont icon-angle-left prev" @click="prev"></a>
      <a href="javascript:;" :class="{ disabled: index === Math.ceil(home.brandList.length / 5 - 1) }"
        class="iconfont icon-angle-right next" @click="next"></a>
    </template>
    <div class="box" ref="box">
      <ul class="list" v-if="home.brandList.length > 0"
        :style="{ transform: `translateX(${-index * 1240}px)`, width: `${Math.ceil(home.brandList.length / 5) * 1240}px` }">
        <li v-for="item in home.brandList" :key="item.id">
          <RouterLink :to="`/goods/${item.id}`">
            <img v-lazy="item.picture" alt="" />
          </RouterLink>
        </li>
      </ul>
      <HomeSkeleton v-else></HomeSkeleton>
    </div>
  </HomePanel>
</template>

<style scoped lang="less">
.home-panel {
  background: #f5f5f5;
}

.iconfont {
  width: 20px;
  height: 20px;
  background: #ccc;
  color: #fff;
  display: inline-block;
  text-align: center;
  margin-left: 5px;
  background: @xtxColor;

  &::before {
    font-size: 12px;
    position: relative;
    top: -2px;
  }

  &.disabled {
    background: #ccc;
    cursor: not-allowed;
  }
}

.box {
  display: flex;
  width: 100%;
  height: 345px;
  overflow: hidden;
  padding-bottom: 40px;

  .list {
    width: 200%;
    display: flex;
    transition: all 1s;

    li {
      margin-right: 10px;
      width: 240px;

      &:nth-child(5n) {
        margin-right: 0;
      }

      img {
        width: 240px;
        height: 305px;
      }
    }
  }
}
</style>
